Step 1: Understanding the Question:
This question tests knowledge of tree breeding methods.
Step 2: Detailed Explanation:
Family selection is the most suitable breeding method for forest tree species.
It involves selecting families based on their performance.
Reciprocal recurrent selection (B): Not common in forestry.
Mass selection (C): Used in some cases.
Sib selection (D): Not common.
Thus, the correct answer is family selection.
Step 3: Final Answer:
Thus, family selection is the most suitable breeding method, which corresponds to option (A).
[0.5cm]